
package baiduyun;

import cn.hutool.core.convert.Convert;
import com.jn.exam.oss.utils.StrUtil;
import org.json.JSONObject;
import org.junit.Test;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 获取token类
 */
public class AuthService {

    /**
     * 获取权限token
     *
     * @return 返回示例：
     * {
     * "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
     * "expires_in": 2592000
     * }
     */
    public static String getAuth() {
        // 官网获取的 API Key 更新为你注册的
        String clientId = "Co8aftCOimcGqS44xn1ec0i4";
        // 官网获取的 Secret Key 更新为你注册的
        String clientSecret = "Wjc5LtEdZbMng0YsSvEV5pGr9Lf2Z7TI";
        return getAuth(clientId, clientSecret);
    }

    /**
     * 获取API访问token
     * 该token有一定的有效期，需要自行管理，当失效时需重新获取.
     *
     * @param ak - 百度云官网获取的 API Key
     * @param sk - 百度云官网获取的 Securet Key
     * @return assess_token 示例：
     * "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
     */
    public static String getAuth(String ak, String sk) {
        // 获取token地址
        String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
        String getAccessTokenUrl = authHost
                // 1. grant_type为固定参数
                + "grant_type=client_credentials"
                // 2. 官网获取的 API Key
                + "&client_id=" + ak
                // 3. 官网获取的 Secret Key
                + "&client_secret=" + sk;
        try {
            URL realUrl = new URL(getAccessTokenUrl);
            // 打开和URL之间的连接
            HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.err.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String result = "";
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            /**
             * 返回结果示例
             */
            System.err.println("result:" + result);
            JSONObject jsonObject = new JSONObject(result);
            String access_token = jsonObject.getString("access_token");
            return access_token;
        } catch (Exception e) {
            System.err.printf("获取token失败！");
            e.printStackTrace(System.err);
        }
        return null;
    }

    @Test
    public void test02() {
        String string="{\"error_code\":0,\"error_msg\":\"SUCCESS\",\"log_id\":1786107947,\"timestamp\":1647768586,\"cached\":0,\"result\":{\"face_num\":2,\"face_list\":[{\"face_token\":\"c4108b8df6a2d6093f9c3dd07b339849\",\"location\":{\"left\":348.48,\"top\":86.54,\"width\":154,\"height\":173,\"rotation\":0},\"face_probability\":1,\"angle\":{\"yaw\":-48.69,\"pitch\":-4.97,\"roll\":-3.86}},{\"face_token\":\"07e286488dd161c0b6264755648f566b\",\"location\":{\"left\":51.97,\"top\":-22.07,\"width\":157,\"height\":117,\"rotation\":11},\"face_probability\":1,\"angle\":{\"yaw\":-5.23,\"pitch\":-2.12,\"roll\":11.17}}]}}";
        System.out.println(StrUtil.sub(string, "face_num\":", ","));

    }

    public static void main(String[] args) {
        String auth = getAuth("Co8aftCOimcGqS44xn1ec0i4", "Wjc5LtEdZbMng0YsSvEV5pGr9Lf2Z7TI");
        System.out.println(auth);
    }
}